My understanding is the ad team found the offending provider. You'll see this thread's activity had stopped last month. This issue also occurred on other sites in the network and feedback from those appeared to confirm this was largely resolved.
That said, it's still possible some might appear from time to time. We need more information - such as screen captures and URLs.
Lastly, this issue is specific to Android devices - especially ones that aren't using recent build. Anytime you use any device connected to the Internet that isn't updated/patched, you have the risk of something like this occurring.
Originally Posted by Mark01Ws6
Hijack ads are still making mobile utterly worthless. Very fustrating to even get it switched over to full site so the content can even be viewed. Any word on when this will be taken care of?